Patent US3133293A successfully refreshed from Google Patents.
US3133293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable catamaran
Assignee: Individual
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Filing: 1963-04-08
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Granted: 1964-05-19
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 John B Brush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:06
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/10; B63B1/14; B63B35/00; B63B35/54; B63B7/00; B63B7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
239 words
A FOLDABLE CATAMARAN ADAPTED TO BE TRAILED BEHIND AN AUTOMOBILE, SAID CATAMARAN COMPRISING: A PAIR OF HULLS ADAPTED TO FLOAT ON THEIR SIDES AS WELL AS IN NORMAL ATTITUDES, A PAIR OF WHEELS, EACH WHEEL OF THE PAIR PROJECTING BEYOND AN OUTBOARD SIDE OF A HULL, A FRAME MEMBER HAVING THE TWO OPPOSITE ENDS THEREOF HINGED TO THE INBOARD SIDES OF THE RESPECTIVE HULLS SUCH THAT THE HULLS MAY BE SWUNG INTO POSITIONS IN WHICH THEY ARE BOTTOM TO BOTTOM TO BRING SAID WHEELS INTO POSITIONS IN WHICH THE HULLS MAY BE TRAILED UPON THEM, REMOVABLE MEANS TO HOLD SAID HULLS BOTTOM TO BOTTOM, A PAIR OF ELONGATED RIGID MEMBERS, EACH RIGID MEMBER OF THE PAIR BEING PIVOTALLY ATTACHED TO THE FORWARD PORTION OF A HULL, A DRAW BAR SECURED TO SAID FRAME MEMBER AT THE FRONT CENTER THEREOF AND ADAPTED FOR UP AND DOWN SWINGING MOVEMENT, MEANS FOR REMOVABLY FASTENING THE FORWARD ENDS OF SAID RIGID MEMBERS AND SAID DRAW BAR TO A TRAILER HITCH, AND A HINGE IN SAID DRAW BAR ADJACENT TO THE FORWARD END THEREOF TO PERMIT THE REAR END THEREOF TO LOWER UNDER CIRCUMSTANCES IN WHICH THE TWO RIGID MEMBERS ARE DISENGAGED FROM THE TRAILER HITCH AND THE HULLS ARE MOVED FROM A POSITION IN WHICH THEY ARE FLOATING ON THEIR SIDES INTO A POSITION IN WHICH THEY ASSUME THEIR NORMAL FLOATING ATTITUDES WHILE THE DRAW BAR IS STILL ATTACHED TO SAID TRAILER HITCH.
Claim 2
Dependent Claim
239 words
A FOLDABLE CATAMARAN ADAPTED TO BE TRAILED BEHIND AN AUTOMOBILE, SAID CATAMARAN COMPRISING: A PAIR OF HULLS ADAPTED TO FLOAT ON THEIR SIDES AS WELL AS IN NORMAL ATTITUDES, A PAIR OF WHEELS, EACH WHEEL OF THE PAIR PROJECTING BEYOND AN OUTBOARD SIDE OF A HULL, A FRAME MEMBER HAVING THE TWO OPPOSITE ENDS THEREOF HINGED TO THE INBOARD SIDES OF THE RESPECTIVE HULLS SUCH THAT THE HULLS MAY BE SWUNG INTO POSITIONS IN WHICH THEY ARE BOTTOM TO BOTTOM TO BRING SAID WHEELS INTO POSITIONS IN WHICH THE HULLS MAY BE TRAILED UPON THEM, REMOVABLE MEANS TO HOLD SAID HULLS BOTTOM TO BOTTOM, A PAIR OF ELONGATED RIGID MEMBERS, EACH RIGID MEMBER OF THE PAIR BEING PIVOTALLY ATTACHED TO THE FORWARD PORTION OF A HULL, A DRAW BAR SECURED TO SAID FRAME MEMBER AT THE FRONT CENTER THEREOF AND ADAPTED FOR UP AND DOWN SWINGING MOVEMENT, MEANS FOR REMOVABLY FASTENING THE FORWARD ENDS OF SAID RIGID MEMBERS AND SAID DRAW BAR TO A TRAILER HITCH, AND A HINGE IN SAID DRAW BAR ADJACENT TO THE FORWARD END THEREOF TO PERMIT THE REAR END THEREOF TO LOWER UNDER CIRCUMSTANCES IN WHICH THE TWO RIGID MEMBERS ARE DISENGAGED FROM THE TRAILER HITCH AND THE HULLS ARE MOVED FROM A POSITION IN WHICH THEY ARE FLOATING ON THEIR SIDES INTO A POSITION IN WHICH THEY ASSUME THEIR NORMAL FLOATING ATTITUDES WHILE THE DRAW BAR IS STILL ATTACHED TO SAID TRAILER HITCH.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |